Physical constants in physics
List of constants to be used
Acceleration due to gravity, g 9.81ms-2
Electron charge, e 1.6 x10-19C
Electron mass 9.11 x 10-31kg
Mass of the earth 5.97 x 1024kg
Plank’s constant, h 6.6 x 10-34Js
Stefan’s-Boltzmann’s constant, σ 5.67 x 10-8Wm-2K-1
Radius of the earth 6.4 x 106m
Radius of the sun 7 x 108m
Radius of the earth’s orbit about the sun 1.5 x 1011m
Speed of light in the vacuum, c 3.0 x 108ms-1
Thermal conductivity of copper 390Wm-1K-1
Thermal conductivity of aluminium 210Wm-1K-1
Specific heat capacity of water 4.200Jkg-1K-1
Universal gravitational constant 6.67 x 10-11Nm2Kg-2
Avogadro’s number, NA 6.02 x 1023mol-1
Surface tension of water 7.0 x 10-2Nm-1
Density of water 1000kgm-3
Gas constant, R 8.31Jmol-1K-1
Charge to mass ratio, e/m 1.8 x 1011Ckg-1
The constant, 9.0 x 109F-1m
Faraday’s constant, F 9.65 x 104Cmol-1
Thermal conductivity of Iron 75Wm-1K-1
Specific latent heat of fusion of Ice = 3.3 x 105Jkg-1
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